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The world's first true radiotelescope. This 10 meter diameter parabolic dish antenna was built by amateur radio astronomer Grote Reber (W9GFZ) in Wheaton IL in 1937.

SETI League photo

This 40 foot radio telescope at the National Radio Astronomy Observatory, Green Bank WV was used by SETI League members for SETI observations in July, 1995.

SETI League photo

SETI League executive director Dr. H. Paul Shuch tunes a receiver near the Hydrogen Line, in a SETI study at the National Radio Astronomy Observatory, Green Bank WV. Dr. Shuch was assisted by SETI League charter member Mike Montgomery (not pictured).

Muriel Hykes photo

The 1420 MHz dipole feed on the 40 foot radio telescope at the National Radio Astronomy Observatory, Green Bank WV, used by SETI League members for SETI observations in July, 1995. This is the same 21 cm feed which SETI pioneer Dr. Frank Drake used for Project Ozma, the first modern SETI experiment, some 35 years earlier.

SETI League photo

SETI League member Muriel Hykes perches in the end of a waveguide horn antenna at the National Radio Astronomy Observatory, Green Bank WV. This is the very antenna which was used at Harvard University in 1951, by Harold Ewen and Edward Purcell, to discover interstellar hydrogen radiation at 1420 MHz.

SETI League photo

The Howard Tatel Radio Telescope at the National Radio Astronomy Observatory, Green Bank WV. SETI pioneer Dr. Frank Drake used this 85 foot diameter antenna for Project Ozma, the first modern microwave search for intelligent extra-terrestrial signals, in 1960.

SETI League photo

SETI League member Muriel Hykes poses in front of a reconstruction of Jansky's Bruce array at NRAO Green Bank WV. Radio astronomy was born in 1932, when Bell Labs engineer Karl Jansky built this antenna to track down static which was plaguing trans-Atlantic telephone service. The source of the interference turned out to be naturally occuring radiation from the Galactic center.